Generalized anxiety disorder is characterized by persistent, excessive, and unrealistic worry about everyday items, events and activities. People with the disorder, which is also referred to as GAD, experience exaggerated worry and tension, often expecting the worst, even when there is no apparent reason for concern. They anticipate disaster and are overly concerned about money, health, family, work, or other issues. GAD is diagnosed when a person worries excessively about a variety of everyday problems for at least 6 months.